v2rayN/v2rayN/v2rayN.Desktop/Converters/DelayColorConverter.cs

using System.Globalization;
using Avalonia.Data.Converters;
using Avalonia.Media;

namespace v2rayN.Desktop.Converters;

public class DelayColorConverter : IValueConverter
{
    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        _ = int.TryParse(value?.ToString(), out var delay);

        return delay switch
        {
            <= 0 => new SolidColorBrush(Colors.Red),
            <= 500 => new SolidColorBrush(Colors.Green),
            _ => new SolidColorBrush(Colors.IndianRed)
        };
    }

    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        return null;
    }
}